[Bug] Method-level Coverage Tracing misses Lambda Functions

[delsner]

This is due to the fact that ByteBuddy (and the JVM in general) does provide good capabilities to instrument lambdas (see here).

Example:

import java.util.ArrayList;
import java.util.function.Consumer;

public class App {
    
    private static Consumer<Integer> method = (n) -> { System.out.println(n); };

    public static void main(String[] args) {
        ArrayList<Integer> numbers = new ArrayList<Integer>();
        numbers.add(5);
        numbers.forEach( method );
    }
}

$ javac App.java
$ java -javaagent:~/.m2/repository/edu/tum/sse/jtec-agent/0.0.3/jtec-agent-0.0.3.jar=cov.trace=true,cov.level=method App
$ cat 71150_1671108967249_cov.log
{"71150":["App#main([Ljava.lang.String;)void"]}